in UE4.25 I’ve linked a point light to my cloud layers via the “Set Point Light BP”. A couple strange artifacts. First, the lighting effect is far offset from the light position in 3D space. Second, where the effect does show up, it doesn’t behave like illumination. It seems to be almost an overlay or an add or some sort. 
Screenshot here:
https://drive.google.com/file/d/1WyYuU4d-DwJP-1Z1PelKrVLzh3zz-ncD/view?usp=sharing
Can you help clarify what might be going on here? Thanks!
Pete